2008 Audi R8 vs. 2004 Audi S4
To start off, 2008 Audi R8 is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Audi S4. In addition, the cost of maintenance, including insurance, on 2004 Audi S4 would be higher. At 4,172 cc (8 cylinders), 2004 Audi S4 is equipped with a bigger engine. In terms of performance, 2008 Audi R8 (420 HP @ 8250 RPM) has 81 more horse power than 2004 Audi S4. (339 HP @ 7000 RPM). In normal driving conditions, 2008 Audi R8 should accelerate faster than 2004 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi S4 weights approximately 560 kg more than 2008 Audi R8.
With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2008 Audi R8 (430 Nm @ 4500 RPM) has 20 more torque (in Nm) than 2004 Audi S4. (410 Nm @ 3500 RPM). This means 2008 Audi R8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi S4.
Compare all specifications:
| 2008 Audi R8 | 2004 Audi S4 | |
| Make | Audi | Audi |
| Model | R8 | S4 |
| Year Released | 2008 | 2004 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Middle | Front |
| Engine Size | 4163 cc | 4172 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 420 HP | 339 HP |
| Engine RPM | 8250 RPM | 7000 RPM |
| Torque | 430 Nm | 410 Nm |
| Torque RPM | 4500 RPM | 3500 RPM |
| Drive Type | AWD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1160 kg | 1720 kg |
| Vehicle Length | 4440 mm | 4590 mm |
| Vehicle Width | 1910 mm | 1780 mm |
| Vehicle Height | 1260 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2470 mm |
| Fuel Consumption Overall | 7.8 L/100km | 13.4 L/100km |
| Fuel Tank Capacity | 90 L | 63 L |
